DEBIAN-CVE-2026-56116
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-56116
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56116.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-56116
- Upstream
- Published
- 2026-06-23T17:17:09Z
- Modified
- 2026-09-14T17:03:45Z
- Severity
-
- 7.1 (High) CVSS_V4 - CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
- Summary
- [none]
- Details
-
dhcpcd through 10.3.2, fixed in commit 708b4a5, contains a memory leak vulnerability in the IPv6 Router Advertisement route information handling that allows an unauthenticated same-link attacker to cause denial of service by sending crafted Router Advertisements. Attackers can repeatedly send Router Advertisements containing Route Information options with a lifetime of zero, triggering unfreed allocations in routeinfo_findalloc() that cause linear memory exhaustion and eventual daemon crash.
- References
Affected packages
Debian:13 / dhcpcd
Package
- Name
- dhcpcd
- Purl
- pkg:deb/debian/dhcpcd?arch=source&distro=trixie
Debian:14 / dhcpcd
Package
- Name
- dhcpcd
- Purl
- pkg:deb/debian/dhcpcd?arch=source&distro=forky
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed1:10.3.2-4
Affected versions
1:10.*
1:10.1.0-11
1:10.1.0-12
1:10.2.0-1
1:10.2.2-1
1:10.2.2-2
1:10.2.2-3
1:10.2.2-4
1:10.2.2-5
1:10.2.2-6
1:10.2.3-1
1:10.2.4-1
1:10.2.4-2
1:10.2.4-3
1:10.2.4-4~bpo13+1
1:10.2.4-4
1:10.3.0-1
1:10.3.0-2~bpo13+1
1:10.3.0-2
1:10.3.0-3~bpo13+1
1:10.3.0-3
1:10.3.0-4
1:10.3.0-5
1:10.3.0-6
1:10.3.0-7~bpo13+1
1:10.3.0-7
1:10.3.1-1~bpo13+1
1:10.3.1-1
1:10.3.1-2
1:10.3.1-3
1:10.3.1-4
1:10.3.1-5~bpo13+1
1:10.3.1-5
1:10.3.2-1
1:10.3.2-2
1:10.3.2-3~bpo13+1
1:10.3.2-3
1:10.3.2-4~bpo13+1